Flora of North America species comparison

1 or 2–5, loosely clustered, usually glabrous or glabrescent, sometimes sparsely tomentose throughout, axils (basal leaves) tomentose.

1 or 2–3, clustered, floccose-tomentose proximally and in leaf axils, otherwise sparsely tomentose or glabrescent.

(and proximal cauline) petiolate;

blades obovate, oblanceolate, spatulate, or lyrate to sublyrate (± pinnately lobed, lateral lobes 3–6 pairs, smaller than terminal lobes), 40–80+ × 10–30+ mm, bases tapering, ultimate margins incised to dentate.

(and proximal cauline) petiolate;

blades narrowly elliptic to elliptic-ovate or oblanceolate to suborbiculate or sublyrate, 20–70+ × 10–30+ mm, bases tapering to rounded or abruptly contracted, margins subentire to crenate, serrate-dentate, or pinnately lobed (abaxial faces floccose-tomentose, especially along midribs, ± glabrescent).

gradually reduced (sessile).

gradually reduced (petiolate, sublyrate or pinnatisect, abaxial faces sparsely hairy; distals sessile, subentire to irregularly dissected).

conspicuously bracteate, glabrous or tomentose.

conspicuously bracteate, sparsely to densely tomentose.

8–13;

corolla laminae 7–10 mm.

8–10;

corolla laminae 9–10 mm.

40–50+;

corolla tubes 4–5 mm, limbs 3–4 mm.

60–70+;

corolla tubes 2.5–3.5 mm, limbs 3.5–4.5 mm.

13–21, green (tips often yellow), 4–9+ mm, glabrous or sparsely tomentose (at least proximally).

13 or 21, green (tips sometimes cyanic), 5–6+ mm, densely tomentose proximally, glabrescent distally.

conspicuous.

inconspicuous.

10–30+ in open, corymbiform or subumbelliform arrays.

6–20+ in open or congested, corymbiform arrays.

2–3 mm, glabrous or hirtellous on ribs;

pappi 5–6 mm.

1.5–2.5 mm, usually hirtellous, sometimes glabrous;

pappi 6.5–7.5 mm.

= 46, 92.

= 46, 92.